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New fossil evidence has provided clues as to how life survived on Earth after
one of the most hostile periods in our planet’s history when a meteor impact
and volcanic eruptions that continued for hundreds of years led to the
extinction of 90 per cent of species.

Just how the remaining 10 per cent of life survived the adverse events 250
million years ago has remained unclear, but remarkable three-dimensional
images of a fossilised burrow found in South Africa shows two different
species nestled together in a single burrow.

Scientists believe that the mammal-like reptile, Thrinaxodon, and the
aquatic amphibian,